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7106205 |
Alarm device for use with fall protection equipment
A preferred embodiment alarm device for use with fall protection equipment includes an elongating member, an alarm, an activation member, and a connecting member. The elongating member has a first...
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6994186 |
Helicopter lineman's ladder
A rigid, unitary ladder is provided having one end configured to be attached to a powerline support tower after the ladder is dropped by helicopter to a lineman previously offloaded onto the tower....
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6966153 |
Insulating cover
A thermal insulating cover is presented. The cover includes a top, a plurality of sides extending from the top and a wide base perimeter extending from the plurality of sides. The device may be...
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6769514 |
Helicopter lineman's ladder and method for energized powerline repair
A rigid, unitary ladder is provided having one end which attaches to a powerline support tower after the ladder is dropped by helicopter to a lineman previously offloaded onto the tower. The ladder...
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6591942 |
Process for manufacturing a composite material ladder and ladder obtained with said process
A process for manufacturing ladders comprises the following steps: arranging a plurality of rungs ( 2 ) of a material comprising a plurality of reinforcing fibers ( 2 a ) associated with a binding...
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6431316 |
Scaffold plank and method of making the same
A scaffold plank comprising a rectangularly configured main body which defines opposed ends, and a pair of end caps secured to respective ones of the opposed ends of the main body. Both the main...
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6405114 |
Aerial work platform boom having ground and platform controls linked by a controller area network
An aerial work platform supported by a riser boom, a telescoping main boom, and a jib boom. Boom movement may be controlled by a platform control module or a ground control module connected to a...
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RE36975 |
Attic hatchway cover
An attic hatchway cover wherein a tent-like structure having side walls, a front wall, and a rear wall each having a flange structure are arranged to engage and for securement to a hatchway opening...
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6014841 |
Insulated cover for attic openings
A cover apparatus (10) is provided which is easily and quickly installed, is simple to use, and is cost effective for selective closing of an attic opening (14) and for providing a thermal and dust...
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5979603 |
Portable tree stand having fiber composite platform
A climbing device for a tree or other vertical columnar member having a platform fashioned from fiber-reinforced composite material. The platform is a one-piece structure having a peripheral skin...
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5867946 |
Insulating cover for attic opening
An attic opening cover and a process for forming the cover are provided. The cover includes a first composite end element including a protective layer bonded to a thermally insulating layer. A...
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5628151 |
Multipocket means for holding insulation to prevent heat loss through an attic stairwell
Openings such as those for attic staircases may be covered with a multipocket member having top, side, and end pockets in which insulation can be placed. The side pockets are of longer length than...
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5573081 |
Ladder top with bail recess
A molded rectangular top component of a stepladder is disclosed which incorporates an improved method of securely supporting a bucket or paint can at the top of the ladder. A recess in a second...
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5547041 |
Ladder
A ladder of the kind which comprises two elongated and vertically extending, rigid uprights, having axially extending recesses. A rung is provided having apertures defined by sleeves having...
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5515942 |
Ladder stiles and ladders produced therefrom
The invention is directed to strong, lightweight, electrically non-conducting ladder stiles and ladders formed therefrom. Each ladder stile comprises a tension and compression portion structurally...
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5503245 |
Step ladder
A step ladder includes legs and a ladder top connected to the ladder legs. The ladder top is molded integrally from a polymer material and has an inverted-cup shape defined by a generally...
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5475955 |
Insulating system for attic stairs and the like
An insulating cover for an attic opening comprising a pair of telescoping male and female assemblies operable between a nested retracted position where they interengage and an extended position of...
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5427198 |
Ladder and method of construction
The present invention provides an article which incorporates a jointed component, preferably a ladder, that includes a first member, a suitably aligned internal annuli, a second member, and a...
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5277272 |
Manhole ladder
A non-metallic ladder for use in a manhole in which permanent manhole steps have been installed and spaced relation from the top of the manhole to a position above the bottom and there being a pair...
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5271198 |
Attic stair insulation dome former
An insulation-dome former adapted for receiving and retaining available thermal insulation materials within, and weather strip-type gasketing on the exterior surfaces of same for the purpose of use...
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5156234 |
Ladder structure
A single run or extension ladder particularly suitable for use where electrical safety is significant. Stiles 6 are each formed from a pair of elongate hollow members 5 fabricated from glass-fibre...
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5143174 |
Dismountable ladder
A dismountable ladder for use with transom, swim or dive platforms having a pair of similarly shaped vertical upper side members. The upper end of each upper side member is formed as a U-shaped...
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5131495 |
Hollow plastic ladder
The present invention pertains to a plastic ladder. The plastic ladder includes a front section which has a first hollow side rail and a second hollow side rail disposed essentially in parallel...
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5131494 |
Effective riser reducer step device
An effective riser reducer step device is provided, which consists of a mechanism placed upon a tread of a step of a staircase for reducing the height of a riser of the step. Another mechanism is...
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5118095 |
Adjustable exercising step
A step for performing exercises is polygonal or circular to allow approaches from any direction equally. The step has a base member and a platform member, the platform member being selectively...
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5111908 |
Pipe step
A pipe step for providing a flat supporting surface on the top side of a horizontal pipe. The step includes a pair of channel members each having arcs cut in the flange portions thereof to meet...
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5103933 |
One piece leg
A one piece plastic leg construction. A main body having an inverted v-shaped configuration includes a pair of downwardly extending legs each having a c-shaped cross section. The legs are mutually...
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5065840 |
Swimming pool safety ladder
A swimming pool safety ladder is described in which the individual steps employed are enclosed along both their side edges and along their back edge so as to prevent the accidental catching of...
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4997061 |
Ladder assembly, particularly for use with swimming pools
An A-frame ladder comprises two side rail assemblies and a platform guard rail assembly each provided in their rail members with elongate oval apertures defining handholds or hand grips. Steps of...
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4947959 |
Folding ladder
A folding ladder comprising of four straight sections each consisting of two uprights and four rungs equally spaced. The sections are connected with insulating hinged joints which can be tightened...
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4869342 |
Drive in manhole step
Improvements in plastic coated, steel core reinforced manhole steps; particular improvements in the drive-in or hammer-in ends of a U-configuration manhole step construction, which improvements...
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4852691 |
Scaffolding board formed from plastics materials, a method of producing same, and an apparatus for implementing the method
The scaffolding board (21) is moulded from a compound, light-hardened, duroplastic material and, in one embodiment, it comprises a box-shaped upper portion (22) provided with grooving (24), a...
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4848515 |
Portable swimming pool step device
A portable, foldable swimming pool step device includes a pair of sectional stiles interconnected by transverse steps and provided with sectional handrail structures. The stiles, steps, and...
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4842098 |
Adjustable folding ladder
The invention is an adjustable folding ladder that can be easily altered in its length and shape to adjust to the proper working height and angles for the user. With the fiber glass nylon hinges,...
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4834216 |
Foldable ladder structure and method of manufacturing the same
Foldable ladder structure and method of making the same wherein plastic material is injected and expanded in molds to form several parts of a foldable ladder which includes front and rear ladder...
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4832153 |
Attic stair insulating cover
The present invention entails an attic stair insulating cover which can easily be placed in an operational position and a compact stored position. The insulating cover includes a plurality of...
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4771861 |
Encapsulated anchor rung and process for making same
A climbing rung is provied for anchoring to the wall of a manhole shaft. The climbing rung has a generally U-shaped core of two parallel legs spaced apart by a central tread. Each leg is sheathed...
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4763758 |
Scuff pad with step
Scuff pad with step with which resides interiorly of an aerial lift bucket, or bucket liner if provided, at the bottom thereof and which includes a base portion and an upwardly extending portion...
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4763757 |
Saw horse
A support device having two end members, a pair of spacer members with hinges at their outer ends and intermediate hinges at their inner ends and swingable between a stored position and an extended...
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4753320 |
Convertable step stool
A stool with two major parts is disclosed. One way of fastening the parts together yields a rigid free-standing stool. In the alternate configuration a folding stool is formed, which can be...
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4747469 |
Collapsible sawhorse arrangement
A collapsible sawhorse arrangement characterized by a generally horizontal work receiving member including a lower plate portion and a vertical plate portion extending longitudinally therealong....
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4742890 |
Work platform
A work platform comprising a moulded polymeric resin fibre-reinforced generally channel-section shell having a lip flange extending inwardly from each channel side, and comprising tensile...
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4726446 |
Protection cover for ladder
A protection cover for a ladder has front and rear side walls located over and extended between the upper end of the rails of a ladder. A releasable strap holds the cover on the ladder. A plurality...
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4716988 |
Ladder step construction for use with recreational vehicles and boats
A new construction method for a ladder for use on recreational vehicles and boats is disclosed. The ladder comprises two parallel metal tubular rails and a plurality of extruded aluminum steps,...
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4715474 |
Scaffold system
A portable scaffold having tubular structural elements has necked fittings extending into the ends of the tubular elements and attached thereto by adhesive which is introduced through an entry port...
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4702349 |
Anchor step
A u-shaped climbing rung to be anchored in a bore hole in a wall, the climbing rung having two parallel legs each leg having two ends, one end of each leg being connected to a transverse central...
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4683981 |
Molded hard elastomer steps and replacement and spreader steps for rope ladders and fittings therefor, as well as molding method therefor
A rope ladder of the type having two spaced-apart pairs of ropes, has a metal frame for each step and has tubular nylon members with cylindrical bores, extending vertically through sets of through...
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4683980 |
Ladder-leveling device
A load leveling device for a ladder in the form of a compensator boot which slips onto a lower end of one of the legs of the ladder. The boot includes a vertically elongated block of homogeneous,...
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4655321 |
Rope ladder with molded hard elastomer steps and method for assemblying the ladder therefor
A rope ladder of the type having a series of ladder steps and two spaced-apart pairs of ropes. Each step has a metal step frame about which is molded a hard elastomer body. Each step has a...
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4641727 |
Electrically insulated temporary aerial platform
An electrically insulated aerial platform assembly for use by a lineman on or around utility poles is provided which is constructed to maintain the actual work platform in an electrically insulated...
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